13293881 has 8 divisors (see below), whose sum is σ = 14419944. Its totient is φ = 12206080.

The previous prime is 13293877. The next prime is 13293887. The reversal of 13293881 is 18839231.

It can be written as a sum of positive squares in 4 ways, for example, as 80656 + 13213225 = 284^2 + 3635^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13293881 - 2² = 13293877 is a prime.

It is a super-2 number, since 2×13293881² = 353454544084322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13293887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8840 + ... + 10233.

It is an arithmetic number, because the mean of its divisors is an integer number (1802493).

Almost surely, 2^13293881 is an apocalyptic number.

It is an amenable number.

13293881 is a deficient number, since it is larger than the sum of its proper divisors (1126063).

13293881 is a wasteful number, since it uses less digits than its factorization.

13293881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19131.

The product of its digits is 10368, while the sum is 35.

The square root of 13293881 is about 3646.0774813490. The cubic root of 13293881 is about 236.8921096749.

The spelling of 13293881 in words is "thirteen million, two hundred ninety-three thousand, eight hundred eighty-one".